Hose-coupling.



No. 761,555. PATENTBD MAY 31, 1904.,

' J. w.- STEWART.

HOSE COUPLING.

APPLICATION FILED JAN. 17, 1902. no MODEL. 2 sums-sum 1.

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No 751,555. PATENTED M-AY 51,1 04.

J. w. STEWART.

HOSE COUPLING.

APPLICATION IILED JAN. 17, 1902:

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witness I v W J I J 1 ttorney Jasfl VrSfwarh UNIT D STATES Patented May 31, 19%

PATENT OFFICE.

JAMES W. STEWART, or PLAIN CITY, UTA

f HOSE-COUPLING.

SPECIFICATION forming part' of Letters Patent No. 761,555, dated May 31,1904. A

Application filed January 17,1902. Serial 110, 90,190, N niodel.)

To all whom/it .TVI/(J/Z/ calmer-n:

Be itknown that I, JAMEs W. STEWART, a citizen of the UnitedStates, residing at Plain City, inthe-county of Weber and State of Utah, have invented'certain new and useful Improvements in Hose-Couplings; and I do hereby declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art towhich it appertains to make and use the same.

This invention relates to pipe or hose couplings; and the primary object thereof is to pro.

vide an improved coupling, whereby the hose or pipe sections on a train utilized for conveying steam or air through the train may be conveniently connected together.

Another object is to provide means whereby the coupling may be made automatically and the supply cut off automatically when the train becomes parted.

Another object is to provide means for keeping the ends of the pipe normally closed except when coupled.

Other objects, as well as the peculiar details of constructiomwill be clearly described hereinafter, and illustrated in the accompanying drawings, in which Figure 1 is a top plan view of the coupling members, showing the position previous to being connected. Fig. 2 is a similar view showingthem connected. Fig. 3 is a horizontal longitudinal sectional view through one of the members. Fig. 4: is a sectional view on the line 4 4 of Fig. 3, and Fig. 5 is a cross-sectional View on the line 5 5 of Fig. 3.

The reference-numeral 1 designates the supply-pipe, the end of which extends down-v wardly from the car at any convenient point and is formed intermediate its extremity with a bulb-shaped enlargement 2, conforming approximately to the shape of a sphere and pro- Vided with a slit 3 in one side thereof, which forms discharge-openings.

Swiveled on the pipe 1 and supported by the enlargement 2 is a jaw 4. This jaw comprises a bar 5, having a communicating passage 6 running longitudinally thereof and adapted to'be brought into alinement with the opening 3 in the pipe 1, whereby air or steam may be admitted to said passage and discharge through an opening? inv the forward'end of the bar 5. 'Adjacent this opening 7 and in rear thereof the bar 5 is formed with two oppositelydisposed wings 8 and 9, which are formed with rearwardlyextending and converging Walls 9 and 10, between which the free end of the coupler member is adapted to be guided, the upper ends-of .said wall being connected by an outwardly-connecting plate 11, forming. a flared inlet-engaging portion adapted to en. 1 gage the free end ofthe base-barof the similar coupling member and on. the opposite car. It will be of course understood that two members exactly alike are to be employed in making the coupling and that bothmembers will beadapted to swing laterally on their spheres to bring the slots into and out of engagement with the passages in the bars. In order to securely guide the bars into engagement with the stirrup, a forwardly-projecting lip 12 is formed on the top of the stirrup, running parallel with the bar 5 and terminating in an outwardlycurved extension 18, whereby the respective bars are guided in proper engagement with each other. The pipes 1 are surrounded by flared openings arranged vertically at the top and bottom of the bar, so that the coupling members may have a suflicient vertical movement to provide for cars which are not of standard construction. When the jaws come together, the opening 7 will register, permitting a continuous passage to be formed, whereby the steam or air may pass through the source of supply to the discharge-port. The bar 5 is removably secured to the pipe 1 by a removable cleat 14:, which is secured to the rear of the bar and is formed with a semispherical recess adapted to fit over the enlargement 2. This cleat forms a tight joint whereby the escape of the fluid will be prevented except through the opening and the enlargement-2. On the end of the bar most distant from the commu nicating passage or outlet 7 is a weight 15, which is designed to balance the bar 5 in approximately a horizontal plane, so that the jaws will b in a position to engage each other.

The jaws or coupling-bars are normally held in the position shown in Fig. 1 on the pipe 1 by frictional contact, the cleat 14 being adapted to be adjusted so as to permit a lateral play on the coupling-bars of the pipe, but yet hold them in any position to which they are adjusted. It will be understood, of course, that the pipes are arranged on one side of the longitudinal center of the car, and assuming the cars to be coming toward each other, the tracks running longitudinally of the sheet of drawings. When the bars are brought together, they will assume a position similar to that shown in Fig. 2, thus automatically bringing the communicating ports and passages in alinement with each other. They will retain this position as long as the cars remain uncoupled. When the cars are uncoupled, however, and move apart, the bars must necessarily assume the position similar to that shown in Fig. 1 as they are automatically swung around to disengage each other. As they are swung around the slit 3 will be thrown out of alinement with the passages 6 and the bar 5, thereby providing a cut-off and automatically shutting off the supply of air or steam as soon as the train becomes parted. As soon, however, as the jaws are brought together again, which may be done by coupling the cars or bringing them in a position to become uncoupled, they will assume a position similar to that shown in Fig. 2, thus automatically forcing them around to throw the communicating passages thereof in communication with the slit 3, whereby communication may be had between the sections of pipe to which the respective bars are secured.

While I have specifically described what to me at this time seems to be the very best means of accomplishing the desired result, I would have it understood that I do not limit myself to the exact construction shown, but reserve the right to make such changes and alterations as may fairly fall within the scope of this invention without departing from the spirit thereof. Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A coupling comprising two bars each of which is provided with a passage adapted to communicate with a line of pipe and having an outlet adapted to register with the outlet of the other member, each of said bars being adapted to swing on a horizontal plane, and means for guiding the respective bars in a position transversely of the car, whereby they may become locked and throw the outlets and passages in communication, said bars being designed to swing out of a transverse position when the train becomes parted and cut off communication with the pipes.

2. A coupling comprising two bars each of which consists of a bar having a passage ad apted to communicate with a line of pipe, an outlet intermediate the ends of said bar, a stirrup arranged in the rear of the outlet and adapted to embrace the opposite member when the jaws are swung on a horizontal plane transversely of the car and to disengage the respective bars when the jaws are swung out of a transverse position.

3. A pipe-coupling comprising two members each of which consists of a bar provided with a fluid passage, and a concave recess adapted to fit a correspondingly-shaped pipe and communicate therewith, and means for em bracing the bar on the other member, whereby the two passages will be brought in alinement with each other.

4:. In a pipe-coupling, the combination with two pipes, each having a downwardly-projecting extension provided with an enlargement near the extremity thereof and having an opening in said enlargement, a bar on each extension and secured on the enlargement by a removable cleat, said bar being provided with flaring openings and surrounding the pipe, whereby a vertical movement is permitted, a passage formed in the bar and provided with an outlet, and means for engaging the bar 011 the opposite coupling member for the purpose described.

In testimony whereof Iaffix my signatu re in presence of two witnesses.

JAMES W. STEWART. Witnesses:

JAMES F. VVADMAN, FRANK J. BERRYESSA. 

